From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- .../sig/rsa/RSAPKCS1V1_5SignatureX509Codec.java | 128 +++++++++++++++++++++ 1 file changed, 128 insertions(+) create mode 100644 libjava/classpath/gnu/java/security/sig/rsa/RSAPKCS1V1_5SignatureX509Codec.java (limited to 'libjava/classpath/gnu/java/security/sig/rsa/RSAPKCS1V1_5SignatureX509Codec.java') diff --git a/libjava/classpath/gnu/java/security/sig/rsa/RSAPKCS1V1_5SignatureX509Codec.java b/libjava/classpath/gnu/java/security/sig/rsa/RSAPKCS1V1_5SignatureX509Codec.java new file mode 100644 index 000000000..ee8586f7d --- /dev/null +++ b/libjava/classpath/gnu/java/security/sig/rsa/RSAPKCS1V1_5SignatureX509Codec.java @@ -0,0 +1,128 @@ +/* RSAPSSSignatureX509Codec.java -- X.509 encoder/decoder for RSA signatures + Copyright (C) 2006 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + + +package gnu.java.security.sig.rsa; + +import gnu.java.security.Registry; +import gnu.java.security.sig.ISignatureCodec; + +import java.security.InvalidParameterException; + +/** + * An implementation of an {@link ISignatureCodec} that knows to encode and + * decode RSA PKCS1 (v1.5) signatures into the raw bytes which would constitute + * a DER-encoded form of the ASN.1 structure defined in RFC-2459, and RFC-2313 + * as described in the next paragraphs. + *

+ * Digital signatures when transmitted in an X.509 certificates are encoded + * in DER (Distinguished Encoding Rules) as a BIT STRING; i.e. + * + * 

+ * Certificate ::= SEQUENCE {
+ *   tbsCertificate       TBSCertificate,
+ *   signatureAlgorithm   AlgorithmIdentifier,
+ *   signature            BIT STRING
+ * }
+ *
+ *

+ * The output of the encoder, and the input of the decoder, of this codec are + * then the raw bytes of such a BIT STRING; i.e. not the DER-encoded + * form itself. + *

+ * Our implementation of the RSA PKCS1 signature algorithm outputs a byte array + * as the result of generating a digital signature, in accordance with RFC-2313. + * As a consequence, the encoder and decoder of this codec, simply pass through + * such a byte array. + *

+ * Client code that needs to build a DER BIT STRING MUST construct such + * an ASN.1 value. The following is an example of how to do this: + *

+ * 

+ * ...
+ * import gnu.java.security.der.BitString;
+ * import gnu.java.security.der.DER;
+ * import gnu.java.security.der.DERValue;
+ * ...
+ * DERValue bitString = new DERValue(DER.BIT_STRING, new BitString(sigBytes));
+ * ...
+ *
+ */ +public class RSAPKCS1V1_5SignatureX509Codec + implements ISignatureCodec +{ + // default 0-arguments constructor + + public int getFormatID() + { + return Registry.X509_ENCODING_ID; + } + + /** + * Encodes an RSA Signature output as a signature BIT STRING as + * defined in the documentation of this class. + * + * @param signature the output of the RSA PKCS1 (v1.5) signature algorithm; + * i.e. the value returned by the invocation of + * {@link gnu.java.security.sig.ISignature#sign()} method. In the + * case of the RSA PKCS1 (v1.5) signature this is an array of bytes. + * @return the raw bytes of an RSA signature which could be then used as the + * contents of a BIT STRING as per rfc-2459. + */ + public byte[] encodeSignature(Object signature) + { + byte[] result = (byte[]) signature; + return result; + } + + /** + * Decodes a signature as defined in the documentation of this class. + * + * @param input the byte array to unmarshall into a valid RSA PKCS1 (v1.5) + * signature instance; i.e. a byte array. MUST NOT be null. + * @return an array of raw bytes decoded from the designated input. In the + * case of RSA PKCS1 (v1.5) this is the same as the input. + * @throw InvalidParameterException if the input array is null. + */ + public Object decodeSignature(byte[] input) + { + if (input == null) + throw new InvalidParameterException("Input bytes MUST NOT be null"); + + return input; + } +} -- cgit v1.2.3